We have four words for these famous flashers: Cover it up, ladies! Which celeb do YOU think had the most embarrassing nip slip?

At this point, flashing a nipple — either accidentally or on purpose — is practically a rite of passage for Hollywood’s elite. Rita Ora was just the latest in a long line of celebrity nip slips, one that already boasts huge names like Lady Gaga, Anne Hathaway, and of course, Kris Jenner! Browse our gallery of the 17 worst celebrity nip slips and vote for the one YOU think is most embarrassing! Read More!